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Individual
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Priority to ES222118ApriorityCriticalpatent/ES222118A1/en
Publication of ES222118A1publicationCriticalpatent/ES222118A1/en
Improvements in the manufacture of prestressed elements by which the heads of the threads are arranged by an overlapping series of grips facing each other and in pairs, of which one is pressed by a ball-and-socket element driven by a screw pressure. (Machine-translation by Google Translate, not legally binding)
ES222118A1955-05-251955-05-25Improvements in the manufacture of pretensed elements (Machine-translation by Google Translate, not legally binding)
ExpiredES222118A1
(en)
A perfect procedure, with its corresponding device, for the determination of the acidity of the wines and similar (Machine-translation by Google Translate, not legally binding)
A teaching system to faclit anyone the knowledge of the technique of measurements of the time of the methods (Machine-translation by Google Translate, not legally binding)